ILLICIT Meaning of ILLICIT in English adj.Illicit is used with these nouns: ↑ affair , ↑ cigarette , ↑ drug , ↑ economy , ↑ narcotic , ↑ sex , ↑ substance , ↑ trade , ↑ use Oxford Collocations English Dictionary. Оксфордский английский словарь словосочетаний . 2012